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3 years ago

Please Help with problems 7-10!!!!

Mathematics

1 answer:

Ahat [919]3 years ago

5 0

Answer:

7) 3m + 21

8) 8t + 12

9) 45 + 30r

10) 32n - 16n or just 16n

Step-by-step explanation:

just use the distributive property

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

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Diano4ka-milaya [45]

Answer:

24 Blue beads

16 Green beads

Step-by-step explanation:

.60×40=24

.40 ×40=16

Whenever you get a percentage move the decimal two places left and multiply by the total number.

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Answer:

$x=\frac{536}{165}$

Step-by-step explanation:

Let X be the value of 3.2484848.... infinite times

Multiply by 100

$x=3.24848....\\100x = 324.8484.....$

Subtract to get

$100x-x = 324.8484...-3.248484....\\99x = 321.60\\x=\frac{321.6}{99} \\x=\frac{1072}{330} \\x=\frac{536}{165}$

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$\frac{536}{165}$

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3 years ago

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ValentinkaMS [17]

Answer:

2x^2-4x-16

Step-by-step explanation:

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3 years ago

A triangle has a perimeter of 59cm. If the three sides of the triangle are n, 3n+4, and 4n−1, what is the length of each side?

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Step-by-step explanation:

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Write the equation of a line with slope of 5/6 , and x-intercept of −8 in point-slope form.

babymother [125]

Answer: $y-0 = \frac{5}{6}(x+8)$

==================================================

Explanation:

Point-slope form is

$y - y_1 = m(x - x_1)\\\\$

where m is the slope and $(x_1,y_1)$ is the point the line goes through.

We're given the slope of m = 5/6, and we want the line going through (-8,0) which is the x-intercept -8. The x-intercept always occurs when y = 0.

So,

$y - y_1 = m(x - x_1)\\\\y - 0 = \frac{5}{6}(x - (-8))\\\\y - 0 = \frac{5}{6}(x + 8)\\\\$

We can replace the y-0 with y; however, I'm going to keep that 0 so that the equation better matches the point-slope form.

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3 years ago